hey donna, glad to hear your itb snip went well. if you don't do anything stupid i know many friends recovering sooooo fast from this surgery, i had it too, many years ago.
the trick i think is to massage heaps of the hammy, quad, glutes, tfl etc, but don't go near the area cut of course. they seem to stiffen up alot to compensate the surgery and it's this that restricts your range of motion of your knee not that actual itb. i went to this massure after mine and when i left i could bend my knee 400% more and he never went near the area, so then he did same to quite a few others since and he said exact same result.
if this fails, pack the effected area in a bag of cereal